This is a kind of fine quality digital wall detector. Multifunctional wall detector, metal detection, wood detection, wire detection, accurate detection, wide ranges of applications. The wall detector can quickly locate wood, metal and AC wires hidden in the walls, floors and ceilings of houses. Specifications: Color: Black / Orange / Black & Silver (Optional) Material: ABS Model: HW430 Name: Multifunctional Wall Scanner 5 in 1 Stud Detector Battery Model: 9V 6F22 battery (not included) Power Type: Battery-Powered With LCD Screen Or Not: Yes Item Size: 152 * 62 * 28 mm / 5.98 * 2.68 * 1.1 inch Item Weight: 148g / 5.22oz Package Size:160 * 78 * 45 mm / 6.3 * 3.07 * 1.77 inch Package Weight: 168g / 5.93oz Multifunction wall scanner HW430 features five scanning modes: Stud 1/2 inch scan: Locates the center and edges of wood and metal studs up to 1/2 inch (13 mm) deep  Stud 1 inch scan: Locates the center and edges of wood and metal studs up to 1 inch (25 mm) deep  Stud 1 1/2 inch scan: Locates the center and edges of wood and metal studs up to 1 1/2 inch (38 mm) deep  Metal Scan: Detects metal up to 2.36 inch (60 mm) deep  AC Scan: Detects live unshielded AC wires up to 2 inch (51 mm) deep Package List: 1 * Wall Scanner 1 * Manual(English)